n | a(n) |
---|---|
1 | 3 |
2 | 5 |
3 | 257 |
4 | 2237 |
5 | 2377 |
6 | 2557 |
7 | 5557 |
8 | 33353 |
9 | 33377 |
10 | 73237 |
11 | 252233 |
12 | 252253 |
13 | 253573 |
14 | 3533377 |
15 | 3533533 |
16 | 3555557 |
17 | 3577333 |
18 | 5375327 |
19 | 5375533 |
20 | 7725733 |
21 | 7737557 |
22 | 7777337 |
23 | 37237523 |
24 | 37237573 |
25 | 37237723 |
26 | 37273237 |
27 | 37273337 |
28 | 55775227 |
29 | 527522777 |
30 | 527523223 |
31 | 527532553 |
[3,5,257,2237,2377,2557,5557,33353,33377,73237, 252233,252253,253573,3533377,3533533,3555557, 3577333,5375327,5375533,7725733,7737557,7777337, 37237523,37237573,37237723,37273237,37273337, 55775227,527522777,527523223,527532553] |